Over 500 million tweets are sent per day.  Bob receives on average 7 tweets during his lunch hour.  What is the probability that Bob receives at leas

Q: The World Economic Forum found that 12% of the U.S. population earns more than $2M per year. Amazon…

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Q: A website knows that currently 21% of site visitors make a purchase. After a redesign of the web…

A: The conditions for the normal approximation to the binomial distribution are given below:From the…

Q: Define binomial distribution with an example.

A: Binomial distribution is one of the important study in probability distributions. In binomial…

Q: In a recent year, an author wrote 184 checks. Use the Poisson distribution to find the probability…

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Q: Earthquakes in California occur according to a Poisson process with rate 1 per week. Find the…

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Q: Assume that when adults with smartphones are randomly selected? 53% use them in meetings or classes.…

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Q: A pitcher pitches a strike ( a good pitch) an average of 75% of the time. What is the probability…

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Q: 39.6% of consumers believe that cash will be obsolete in the next 20 years. Assume that 6 consumers…

A: Let  be the number of consumers believe that cash will be obsolete in the next  years.The number of…

Q: Use the Poisson distribution tables, not the mathematical formula.  It is estimated that 2% of the…

A: Given : 2% of the people in an auditorium of 100 unmarried/not related adults own a second home i.e…

Q: Accidents occur at an intersection at a Poisson rate of 2 per day. What is the probability that…

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Q: In a recent​ year, an author wrote178checks. Use the Poisson distribution to find the probability​…

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Q: A statistics professor finds that when he schedules an office hour at the​ 10:30 a.m. time​ slot, an…

A: Givenan average of three students arriveλ=3x~poisson(λ=3)P(X=x)=e-λ×λxx!  ; x≥0

Q: In a recent year, an author wrote 156 checks. Use the Poisson distribution to find the probability…

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Q: In a recent​ year, a hospital had 4472 births. Find the mean number of births per​ day, then use…

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Q: A manufacturer of clothing knows that the probability of a snap flaw is 0.002 An inspector examines…

A: The objective of this question is to find the probability that an inspector finds no snap flaws in…

Q: In a recent​ year, a hospital had 4395 births. Find the mean number of births per​ day, then use…

A: Given,no.of births per year =4395no.of days per year =365

Q: In a recent​ year, a hospital had 4350 births. Find the mean number of births per​ day, then use…

A: Given that, a hospital had 4350 births in a recent year Here, consider the year has non-leap year…

Q: In a recent year, Professor Felker wrote 192 checks. Find the probability that on a randomly…

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Q: 39.9​% of consumers believe that cash will be obsolete in the next 20 years. Assume that 7…

A: According to the given information,Probability of success in a trial, p = 39.9% = 0.399Total number…

Q: In a recent​ year, an author wrote 191checks. Use the Poisson distribution to find the probability​…

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Q: Assume that when adults with smartphones are randomly​ selected,53​% use them in meetings or…

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Q: Jack wakes up late on average 3 days in every 5. If Jack wakes up late, the probability he’s late…

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Q: A vending machine in a supermarket breaks down an average of four times per month. Using the Poisson…

A: Given,The average breaks down per month(λ)=4A random variable X~Poisson(λ=4)P(X=x)=e-44xx!  ;  x≥0

Q: 39.6​% of consumers believe that cash will be obsolete in the next 20 years. Assume that 7 consumers…

A: given data   p( cash obsolete) = p = 0.396 select n = 7 consumers. x = No. of cash obsolete p(x=X) =…

Q: In a recent​ year, a hospital had 4392 births. Find the mean number of births per​ day, then use…

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Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.